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Finding the Fourth Proportional to 133,907.47, 200,720.97 and 45,130.30

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Solution

The fourth proportional to 133,907.47, 200,720.97 and 45,130.30 is: 67,648.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,907.47 : 200,720.97 = 45,130.30 : x
  2. Step 2: Convert to fraction form
    133,907.47/200,720.97 = 45,130.30/x
  3. Step 3: Cross multiply
    133,907.47x = 200,720.97 × 45,130.30
  4. Step 4: Simplify right side
    133,907.47x = 9,058,597,592.39
  5. Step 5: Solve for x
    x = 9,058,597,592.39/133,907.47
  6. Step 6: Final answer
    x = 67,648.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.